Book/Report

FZJ-2016-05677

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Untersuchungen zur Kohienstofftransport mit Carbidbildung in Nickelbasislegierungen

Schulten, R.FZJ* ; Bongartz, K.FZJ* ; Quadakkers, W. J.FZJ* ; Schuster, H.FZJ* ; Nickel, H.FZJ*

1989
Kernforschungsanlage Jülich GmbH, Zentralbiliothek, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/12613

Report No.: Juel-2319

Abstract: The present thesis describes the carburization behaviour of nickel based alloys in heavily carburizing environments. The mechanisms of carbon diffusion and carbide precipitation in NiCr alloys with and without ternary additions of iron, cobalt or molybdenum have been investigated. Using the results of carburization experiments, a mathematical model which describes carbon diffusion and carbide formation, was developed. The simulation of the carburization process was carried out by an iterative calculation of the local thermodynamic equilibrium in the alloy. An accurate description of the carbon profiles as a function of time became possible by using a finite-difference calculation. Taking as a basis the understanding of the carburization and carbide precipitation processes gained from the simple model alloys, the mathematical description could be further developed so that these processes in more complex alloys with compositions near to those of commercial alloys could also be described.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000 ; Retrocat)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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Database coverage:

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